This study aimed to determine the relationship between the workplace practices and school effectiveness of public elementary schools in Paquibato District, Davao City. This study utilized the descriptive-correlational design with one hundred fifty teachers school teachers selected using stratified random sampling technique. In gathering data, the researcher adapted a survey questionnaire both for the workplace practices and school effectiveness. Ethical considerations were observed in data collection. The collated data were subjected to statistical tests such as mean, Pearson’s r and multiple linear regression. Findings showed that the extent of workplace practices of the elementary schools is extensive, which means that their workplace practices is oftentimes observed. The extent of school effectiveness of the elementary schools is extensive, which means that their school effectiveness is oftentimes observed. There was a moderate significant relationship between the workplace practices and school effectiveness. The domains of workplace practices that influenced the school effectiveness were technology integration, student-centered learning, family and community engagement, and social- emotional learning. With this, the Department of Education should prioritize infrastructure and facilities for public elementary schools to promote favorable physical environment for effective teaching and learning, which contributes to overall school effectiveness.